000 00455nam a2200193Ia 4500
005 20250619145153.0
008 250619s9999||||xx |||||||||||||| ||und||
020 _a8170416329
_c250
040 _aMAIN
041 _aEnglish
082 _a371.1
_bYAD
100 _aYadav, M.S.
245 0 _aTeaching of science
260 _aNew Delhi
_b; Anmol Publications
_c, 1992
300 _a240p.
650 _aEducation
650 _aTeaching
942 _cBK
999 _c123141
_d123141